Based Imaging Spectrometer Data Mineralization Information Identification System Design And Realization

Spectrographic data has the very high spectral resolution, which can collect spectrum information simultaneously in hundreds of narrow and contiguously spaced bands, with wavelengths ranging from the visible spectrum to the infrared region. Thanks to the high dimensional data and the rich space, radiation information, spectrographic remote sensing has been increasingly utilized for mineral exploration. The information identification of rock and mineral in spectrographic data is a research hotspot in the field of remote sensing in geology.The identification information of the typical altered rock and mineral is studied for mineral exploraion. First of all, based on the characteristics of hyperspctral remote sensing detection technology and the present research of rock and mineral identification, it designs a half supervision of the typical altered minerals and litholoy information extraction and identification methods of spectrographic data, and gives the processing of the typical rock and mineral identification; Secondly, it designs the system framwork of information identification of rock and mineral in spectrographic data and the core modules of information identification, classification and mapping of rock and mineral in detail; Then, it explores and designs this system based on the detailed design of the system framwork and function modules, including the key steps, such as endmember exraction, spectrum matching and identification of spectrographic data, and gives the detailed design of the important algorithms, such as minimum noise fraction, pure pixel index, spectrum angle matching; At last, it tests the actual spectrographic data systemly, and the result shows that the information identification system of rock and mineral is available, and can be used to help the parctice work of mineral exploration.